Quantiphi Analytics Solutions Private Limited Data Engineer Interview Questions and Answers

Aptitude test had few quant and verbal questions then SQL MCQs and 3 Coding question

Q1. Questions about guesstimates and puzzles
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Q2. Which coding language is better and why?
Ans. 
There is no one 'better' coding language, as it depends on the specific use case and requirements.
• The best coding language depends on the project requirements, team expertise, and ecosystem support.

• For data engineering, languages like Python, Scala, and SQL are commonly used for their data processing capabilities.

• Python is popular for its simplicity and extensive libraries like Pandas and NumPy, while Scala is known fo...read more
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Q1. Tell about your previous projects
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Q1. Tell about previous projects
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Q1. Salary discussion
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Q1. BigQuery Architecture and file formats
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Q2. Airflow operators and what is the use of Airflow python operator
Ans. 
Airflow operators are used to define tasks in a workflow. The Airflow Python operator is used to execute Python functions as tasks.
• Airflow operators are used to define individual tasks in a workflow

• The Airflow Python operator is specifically used to execute Python functions as tasks

• It allows for flexibility in defining custom tasks using Python code

• Example: PythonOperator(task_id='my_task', python_callable=my_python_fu
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Q1. Explain the entire ETL workload in your current company project and how to handle the data quality issues.
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Q1. SQL basic questions related to joins
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Q1. Informatica power center and SQL advance question
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Q1. Family background and salary discuss
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